Stop releasing arm for thread carrier rods



Dc. 19, 1933. J ss 5 1,940,237

STOP RELEASING ARM FOR THREAD CARRIER RODS Filed Sept. 8, 19s: 2 Sheets-Sheet 515-- 1.-

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Dec. 19, 1933'. AR l 1,940,237

5Tb? RELEASlNG ARM FOR THREAD CARRIER RODS Filed Sept. 8, 1931 2 Sheets-Sheet 2 fla; E;

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Patented Dec. 19, 1933 PATENT OFFICE STOP RELEASING ARM FOR THREAD CARRIER RODS Julius Bareiss, Berkshire Heights, Pa., assignor to Textile Machine Works, Wyomissing, Pa., a corporation of Pennsylvania Application September 8, 1931. Serial No. 561,544

7 Claims.

This invention relates to stop control means for the thread feeding guide rods of full fashioned knitting machines, and more specifically to a stop arm of the type set forth in Patent No. 1,079,915

of November 25, 1913, employed in connection with the usual end stops to additionally control rod stopping or rod releasing as required for special thread feeding movements; the object of the present improvements being to provide said arm with movable rod engaging contacts particularly adapted to increase the control action of said arm for a variety of purposes.

The nature of the improvements and their manner of use will be more fully described in connection with theaccompanying drawings, and the novel features thereof specifically set forth in the appended claims.

Referring to the drawings,-

Fig. 1 is a partial rear elevation of one end of a full fashioned knitting machine embodying the invention.

Fig. 2 is mainly an enlarged cross sectional view taken on the line 2--2 of Fig. 1.

Fig.3 is a plan view looking in the direction of line 33 of Fig. 2. r

Fig. 4 is a sectional view taken substantially on the line 4-4 of Fig. 3.

Fig. 1 indicates a usual end spindle 1, having a traversed stop nut 2 thereon carrying end stops 3 for the thread carrier rods 4, all as heretofore and operating in known manner. A pair of rod releasing arms 5 and 6 are indicated engaging in spaced slotted recesses of a nut carried support '7, said arms being jointly pivoted on a fixed shaft 8, and having extensions 9 and 10 respectively engageable with a suitable cam on slur cock bar 11 adapted to partly raise said arms from their rests in said nut recesses.

The lower edges of the arms 5 and 6, within 40,said slotted recesses overlying the carrier rods 4, heretofore were straight and adapted to engage a dog 12 on any carrier rod, or such edge was cut away above certain rods and acted only on certain other rod dogs, limiting their control to a single use and requiring a change of arm for varied use. One of the uses for which these arms are particularly adapted is to time the release of carrier rods used in plating, it being essential that one carrier rod have a definite lead over the other, as well understood. Such control is indicated in Fig. 3, dogs 12 on the plating rods 4 and 4 engage the respective arms 5 and 6 to stop them as they move away from their end stops and their further movement is determined by action of cam on slur cock bar 11, or a plating extension of such bar, to sequentially lift the arms to free said rods with one leading the other at a fixed distance. Heretofore the cut away lower edge of arms 5 and 6 fixedly determined which rod would lead, and the present improvements provide among other advantages for selective determination and for reverse plating when desired.

The present improvements show the rods 4 freely movable beneath the arms 5 and 6 which also clear any rod dogs except as movable contacts are lowered into the paths of the latter. Each arm 5 and 6 is shown with two movable contacts, arranged to overlie two adjacent car rier rods, and either may be separately lowered or raised as desired. And as the movable contacts are alike, description of one will suffice.

Each movable contact comprises, as shown, a stem 15 mounted for vertical movement in a bearing aperture in its respective arm, 5 or 6, one end of said stem having a contact block 16 and its opposite end an operating block 17 provided with a lateral channel 18 in which the pin 19 of a turn knob 20 engages, rotation of the latter on itspivot pin 21 acting to raise and lower contact block 16 out of and into the path of its respective rod dog. Pivot pin 21 is fixed to a slide. block 22 which has a limited movement on its respective arm, 5 or 6, through its slotted engagement with its securing bolt 23, such sliding movement positioning slide extension 24, either beneath block 17 86 when raised, or over said block when lowered, to lock it in adjusted position. A tension spring 25, shown as conveniently connecting two slide blocks in each arm, normally retains said slide in locking position, and sliding withdrawal of said block 90 is a preliminary essential to rotation of turn knob 20, the pin 19 of the latter merely shifting in channel 18. Each arm 5 and 6 is shown as having two contact blocks with oppositely arranged slide blocks tensioned by a common spring, permitting single operation of any slide.

In controlling two plating carrier rods, as above referred to, the blocks 16, 16 in each arm overlie the same pair of carrier rods, and by lowering one block in arm 5 to engage one rod, and one block in arm 6 to engage the other rod, a determined lead of one rod may be accurately determined, which may be readily reversed by corresponding reversal of the lowered blocks 16, 16.

The arms 5 and 6 may be rendered idle by raising all blocks 16, or one block alone may be lowered for selvage reenforcement, the movable blocks providing for varied requirements readily effected.

From the foregoing description it is believed the nature of'the present improvements and their possible varied operation will be readily under ting machine having thread carrier rods, a rodreleasing stop-arm having a pair of rod-releasing stops vertically mounted thereto to move into and out of rod engagement, independent moving and locking means for the respective stops, and a common tensioning means for said locking means.

2. In combination with a full fashioned knitting machine having thread carrlerrods, a releasable rod-stop arm having a rod engaging stop movable vertically thereon into and out of rodengaging position; and means associated with said arm for moving said stop into and out of cooperative relation with a carrier rod.

1 3.- In combination with a full fashioned knitting machine having thread carrier rods, a releasable rod-stop arm having a rod engaging stop movable thereon into and out of rod-engaging position; a slide block on said arm; and means carried-bysaid slide block for moving said stop iigtlo and out'of cooperative relation with a carrier r 4 4. In combination with a full fashioned knitting machine having thread carrier rods, a releasable rod-stop arm having a rod engaging stop movable thereon into and out of rod-engaging position; a slide block on said arm; and locking as J full rams lmitmeans carried by said slide block for retaining said stop in its adjusted position.

5. In combination with a full fashioned knitting machine having thread carrier rods, a releasable rod-stop arm having rod-engaging stops movable vertically thereon into and out of rod engaging position; slide blocks on said arm, one for each of said stops; locking means on each slide block for retaining the related stop in its adjusted position; and common means for urging said slide blocks into locking engagement with their stops. 1

6. In combination with a full fashioned knitting machine having thread carrier rods, a releasable rod-stop arm having a rod engaging stop movable thereon into and out of rod-engaging position; a slide block on said arm; locking means on said slide block for retaining said stop in its adjusted position; and means carried by said slide block and operative, on sliding thereof to release said locking means for, moving said stop into and out of cooperative relation with said carrier rod.

'7. In a full fashioned knitting machine, thread carrier rods, a releasable rod-stop arm provided with a stop movable thereon into and out of rodengaging position, a locking member on said stop, and locking means on said arm engageable with one portion ofsaid member for holding said stop in operative position and with another portion of said member for holding said stop in inoperative position.

JULIUS BAREISS. 

